CN215257522U - Gradient porous metal rubber brake disc - Google Patents
Gradient porous metal rubber brake disc Download PDFInfo
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- CN215257522U CN215257522U CN202121297734.2U CN202121297734U CN215257522U CN 215257522 U CN215257522 U CN 215257522U CN 202121297734 U CN202121297734 U CN 202121297734U CN 215257522 U CN215257522 U CN 215257522U
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- porosity
- metal rubber
- porous metal
- rubber ring
- brake disc
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Abstract
The utility model relates to a gradient porous metal rubber brake disc, including pressing from both sides the porous metal heat dissipation piece of establishing between two brake disc bodies, porous metal heat dissipation piece is gradient porous metal rubber, and gradient porous metal rubber is from the constantly increase of the porosity at center to edge to restrain the trend that the vortex enlarges. Under different vehicle speeds, the vortex phenomenon exists in the ventilation flow channel of the brake disc, and the air has lower flow velocity in the vortex area, which is not beneficial to the convective heat transfer of the brake disc; and the vortex region of brake disc is the trend of constantly expanding from the center to the edge, the utility model discloses a gradient porous metal rubber, the porosity constantly increases from the center to the edge to restrain the trend of vortex expansion.
Description
Technical Field
The utility model relates to a gradient porous metal rubber brake disc relates to vehicle technical field.
Background
As the speed of high-speed trains and automobiles is increasing, the safety performance of the trains and automobiles is receiving much attention, and the braking performance is an extremely important point. In the braking process, the kinetic energy of the train and the automobile is mainly converted into internal energy through the friction action between a brake disc and a friction lining in the brake, so that the temperature of the brake disc and the friction lining is increased rapidly, and the brake generates a heat fading phenomenon at an overhigh temperature, even the brake fails. The heat dissipation problem of the brake disc therefore determines the constancy of the braking performance of the brake.
A great deal of research shows that the high temperature generated by braking and uneven distribution of the temperature on the brake disc can cause brake abrasion and failure, and the thermal stress field generated by braking can cause low-cycle fatigue, cracking and other consequences of the brake disc. To solve these problems, a porous structure is used to induce forced convection airflow to achieve the purpose of temperature reduction.
SUMMERY OF THE UTILITY MODEL
In view of the deficiencies of the prior art, the technical problem to be solved by the present invention is to provide a gradient porous metal rubber brake disc.
In order to solve the technical problem, the technical scheme of the utility model is that: a gradient porous metal rubber brake disc comprises a porous metal radiating piece clamped between two brake disc bodies, wherein the porous metal radiating piece is gradient porous metal rubber, and the porosity of the gradient porous metal rubber from the center to the edge is increased continuously to inhibit the tendency of vortex expansion.
Preferably, the projected area of the porous metal heat sink is the same as the projected area in the axial direction of the brake disk body.
Preferably, the porosity of the gradient porous metal rubber is 10% -90%.
Preferably, the porous metal heat dissipation member comprises a light high-porosity metal rubber ring, a medium-porosity metal rubber ring and a low-porosity metal rubber ring which are coaxially arranged from outside to inside in sequence, so that the porous metal heat dissipation member is clamped between the upper friction disc and the lower friction disc, and the gradient porous structure not only limits the eddy current phenomenon, but also improves the heat transfer.
Preferably, the porous metal heat dissipation member comprises a large-sector high-porosity metal rubber ring group and a large-sector low-porosity metal rubber ring group which are coaxially arranged from outside to inside in sequence, the large-sector high-porosity metal rubber ring group consists of a plurality of light large-sector high-porosity metal rubber rings, the large-sector low-porosity metal rubber ring group consists of a plurality of light large-sector low-porosity metal rubber rings, and the large-sector high-porosity metal rubber rings are clamped between the upper friction disc and the lower friction disc.
Preferably, the porous metal heat radiating piece comprises a high-porosity small fan-shaped metal rubber ring group, a medium-porosity small fan-shaped metal rubber ring group and a low-porosity small fan-shaped metal rubber ring group which are coaxially arranged from outside to inside in sequence, wherein the high-porosity small fan-shaped metal rubber ring group consists of a plurality of light high-porosity small fan-shaped metal rubbers; the high-porosity small fan-shaped metal rubber, the medium-porosity small fan-shaped metal rubber and the low-porosity small fan-shaped metal rubber are the same in number and correspond to one another.
Preferably, the porous metal heat sink contains from outer to interior multiloop cylinder metal rubber ring group of coaxial setting in proper order, and cylinder metal rubber ring group comprises the cylinder metal rubber hoop interval of a plurality of light, and from interior to exterior multiloop cylinder metal rubber ring group porosity constantly increases.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. under different vehicle speeds, the vortex phenomenon exists in the ventilation flow channel of the brake disc, and the air has lower flow velocity in the vortex area, which is not beneficial to the convective heat transfer of the brake disc; and the vortex region of brake disc is the trend of constantly expanding from the center to the edge, the utility model discloses a gradient porous metal rubber, the porosity constantly increases from the center to the edge to restrain the trend of vortex expansion.
2. The gradient porous metal rubber adopted by the utility model can obtain proper gradient porosity by adjusting and changing the size of the gap, the pore distribution and the porosity of the metal wires and the arrangement mode (different entrance angles, exit angles, the diameters and the quantity of the metal rubber, etc.) of the porous metal rubber; the two-dimensional flow of air in the traditional structure is converted into three-dimensional mixed flow, so that radial and circumferential heat transfer is generated, and further, the minimum radial and circumferential temperature gradient is reduced.
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Drawings
Fig. 1 is a first structural schematic diagram of embodiment 1 of the present invention.
Fig. 2 is a second schematic structural diagram of embodiment 1 of the present invention.
Fig. 3 is a schematic structural view of embodiment 2 of the present invention.
Fig. 4 is a schematic structural view of embodiment 3 of the present invention.
FIG. 5 is a schematic structural view of embodiment 4 of the present invention
FIG. 6 is a schematic view of a high porosity metal rubber construction with a fan shape in the forming direction.
FIG. 7 is a schematic view of a low porosity metal rubber construction with a scalloped forming direction.
FIG. 8 is a schematic view of a non-molding-direction-fan-shaped high-porosity metal rubber construction.
FIG. 9 is a schematic view of a non-forming direction sector low porosity metal rubber construction.
Detailed Description
The present invention will be further explained with reference to the drawings and the embodiments.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
As shown in fig. 1 to 9, the present embodiment provides a gradient porous metal rubber brake disc, which includes a porous metal heat sink sandwiched between two brake disc bodies 3, the porous metal heat sink is a gradient porous metal rubber 4, and the porosity of the gradient porous metal rubber increases from the center to the edge, so as to suppress the tendency of vortex expansion.
In an embodiment of the present invention, the projected area of the porous metal heat sink is the same as the projected area of the brake disk body in the axial direction.
The embodiment of the utility model provides an in, gradient porous metal rubber's porosity is 10% ~ 90%.
In the embodiment of the present invention, the brake disc body includes a hub 1 and a disc 2 (or a rotor), and the brake disc body is made of light alloy such as aluminum, aluminum magnesium or titanium; the gradient porous metal rubber is made of metal wires through various processes of weaving, laying, winding and the like, and is placed into a die for cold punch forming; the metal wire is one or more of iron wire, stainless steel wire, aluminum wire, copper wire, tantalum wire, zirconium wire or titanium wire, and has a diameter of 0.05mm-5 mm. The gradient porous metal rubber is divided into metal rubber along a molding direction and metal rubber in a non-molding direction. The two brake disc bodies and the porous metal radiating piece form an interlayer structure through processes of brazing, solid-phase welding, fusion welding and the like.
In the embodiment of the present invention, the porous metal heat sink includes a plurality of air flow passages 4 a. It should be noted that when the brake disc is used, two brake pads (not shown) are required to clamp the upper friction disc and the lower friction disc to generate a braking effect.
The embodiment of the utility model provides an in 1, porous metal radiating part contains from outer high porosity metal rubber ring 5a of the light that inwards sets up coaxially in proper order, well porosity metal rubber ring 5b, low porosity metal rubber ring 5c, makes it press from both sides between friction disk 2a, lower friction disk 2b, and gradient porous structure has not only restricted vortex phenomenon, has still improved the heat transfer.
The embodiment of the utility model provides an in 2, porous metal heat dissipation spare contains from outer inside in proper order the high porosity metal rubber ring group of fan-shaped big of coaxial setting, the low porosity metal rubber ring group of fan-shaped big, the high porosity metal rubber ring group of fan-shaped big comprises the high porosity metal rubber ring 6a of fan-shaped big of a plurality of lights, the low porosity metal rubber ring group of fan-shaped big of a plurality of lights is constituteed by the low porosity metal rubber ring 6b of fan-shaped big of a plurality of lights, make it press from both sides at last friction disk, down between the friction disk, porous metal heat dissipation spare has very strong compressive capacity, bear frequent high compressive stress when braking.
In embodiment 3 of the present invention, the porous metal heat sink comprises a high-porosity small-sector metal rubber ring set, a medium-porosity small-sector metal rubber ring set, and a low-porosity small-sector metal rubber ring set coaxially disposed from outside to inside in sequence, the high-porosity small-sector metal rubber ring set is composed of a plurality of light high-porosity small-sector metal rubbers 7a, the medium-porosity small-sector metal rubber ring set is composed of a plurality of light medium-porosity small-sector metal rubbers 7b, the low-porosity small-sector metal rubber ring set is composed of a plurality of light low-porosity small-sector metal rubbers 7c, the metal rubber rings with high porosity and small fan shapes are arranged at intervals, the metal rubber rings with medium porosity and small fan shapes are arranged at intervals, and the metal rubber rings with low porosity and small fan shapes are arranged at intervals so as to be clamped between the upper friction disc and the lower friction disc; the high-porosity small fan-shaped metal rubber, the medium-porosity small fan-shaped metal rubber and the low-porosity small fan-shaped metal rubber are the same in number and correspond to one another. The circumferential spacing arrangement forms first spaced passages 8.
The embodiment of the utility model provides an in 4, porous metal heat sink contains from outer toward interior many rings of cylinder metal rubber ring group of coaxial setting in proper order, and cylinder metal rubber ring group comprises the cylinder metal rubber 9 hoop intervals of a plurality of light, and the many rings of cylinder metal rubber ring group porosity from interior to exterior constantly increases. The high-porosity metal rubber is used for replacing a traditional bearing structure, has higher porosity level, and can bear high-pressure clamping force in a forming direction or a non-forming direction. When braking, the average stress of the disc is constantly changed from the center to the edge, and the gradient metal rubber is adopted, so that pressure can be better borne, and the deformation consistency on the planes of the upper friction disc and the lower friction disc is ensured. The cylindrical metal rubber ring group has four turns. Circumferentially spaced apart forming second spaced apart channels 10.
The embodiment 5 of the present invention is to use the three-dimensional space structure with gradient change in the above embodiments 1 and 2 as the base body, and to immerse the reinforcing phase into the base body through pressure casting infiltration, non-pressure infiltration or suction infiltration process, and then selectively corrode the three-dimensional space structure composed of metal wires by using the chemical corrosion method, thereby forming the gradient porous metal structure complementary to the base body structure. The reinforcing phase is a metal having a melting point lower than that of the base metal wire, and is generally selected from magnesium and magnesium alloys, titanium and titanium alloys, zinc and zinc alloys, and the like. The corrosive agent is hydrochloric acid, sulfuric acid or nitric acid.
A working method of a gradient porous metal rubber brake disc comprises the following steps: gradient porous metal rubber is adopted, and the porosity from the center to the edge is increased continuously to inhibit the tendency of vortex expansion; the size, the pore distribution and the porosity of the pores in the gradient porous metal rubber and the arrangement mode of the porous metal rubber are changed by adjusting: obtaining proper gradient porosity by different inlet angles, outlet angles, diameters and quantities of metal rubbers; the two-dimensional flow of air in the traditional structure is converted into three-dimensional mixed flow, so that radial and circumferential heat transfer is generated, and further, the minimum radial and circumferential temperature gradient is reduced.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention still belong to the protection scope of the technical solution of the present invention.
Claims (7)
1. A gradient porous metal rubber brake disc is characterized in that: the brake disc comprises a porous metal radiating piece which is clamped between two brake disc bodies, wherein the porous metal radiating piece is gradient porous metal rubber, and the porosity of the gradient porous metal rubber from the center to the edge is increased continuously so as to inhibit the tendency of vortex expansion.
2. The gradient porous metal rubber brake disc of claim 1, wherein: the projected area of the porous metal heat dissipation piece is consistent with the projected area of the brake disc body in the axial direction.
3. The gradient porous metal rubber brake disc of claim 1, wherein: the porosity of the gradient porous metal rubber is 10% -90%.
4. The gradient porous metal rubber brake disc of claim 1, wherein: the porous metal heat dissipation part comprises a light high-porosity metal rubber ring, a medium-porosity metal rubber ring and a low-porosity metal rubber ring which are coaxially arranged from outside to inside in sequence, so that the porous metal heat dissipation part is clamped between the upper friction disc and the lower friction disc, and the gradient porous structure not only limits the eddy current phenomenon, but also improves the heat transfer.
5. The gradient porous metal rubber brake disc of claim 1, wherein: the porous metal heat radiating piece comprises a large-sector high-porosity metal rubber ring group and a large-sector low-porosity metal rubber ring group which are coaxially arranged from outside to inside in sequence, wherein the large-sector high-porosity metal rubber ring group consists of a plurality of light large-sector high-porosity metal rubber rings, and the large-sector low-porosity metal rubber ring group consists of a plurality of light large-sector low-porosity metal rubber rings, so that the large-sector high-porosity metal rubber rings are clamped between an upper friction disc and a lower friction disc, and the porous metal heat radiating piece has very strong pressure resistance and bears frequent high-pressure stress during braking.
6. The gradient porous metal rubber brake disc of claim 1, wherein: the porous metal heat radiating piece comprises a high-porosity small fan-shaped metal rubber ring group, a medium-porosity small fan-shaped metal rubber ring group and a low-porosity small fan-shaped metal rubber ring group which are coaxially arranged from outside to inside in sequence, wherein the high-porosity small fan-shaped metal rubber ring group consists of a plurality of light high-porosity small fan-shaped metal rubbers, the medium-porosity small fan-shaped metal rubber ring group consists of a plurality of light medium-porosity small fan-shaped metal rubbers, the low-porosity small fan-shaped metal rubber ring group consists of a plurality of light low-porosity small fan-shaped metal rubbers, the plurality of high-porosity small fan-shaped metal rubbers are annularly arranged at intervals, the plurality of medium-porosity small fan-shaped metal rubbers are annularly arranged at intervals, and the plurality of low-porosity small fan-shaped metal rubbers are annularly arranged at intervals and clamped between the upper friction disc and the lower friction disc; the high-porosity small fan-shaped metal rubber, the medium-porosity small fan-shaped metal rubber and the low-porosity small fan-shaped metal rubber are the same in number and correspond to one another.
7. The gradient porous metal rubber brake disc of claim 1, wherein: porous metal heat sink contains from outer toward interior multiloop cylinder metal rubber ring group of coaxial setting in proper order, and cylinder metal rubber ring group comprises the cylinder metal rubber ring hoop interval of a plurality of light, and from interior to exterior multiloop cylinder metal rubber ring group porosity constantly increases.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121297734.2U CN215257522U (en) | 2021-06-10 | 2021-06-10 | Gradient porous metal rubber brake disc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121297734.2U CN215257522U (en) | 2021-06-10 | 2021-06-10 | Gradient porous metal rubber brake disc |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215257522U true CN215257522U (en) | 2021-12-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121297734.2U Expired - Fee Related CN215257522U (en) | 2021-06-10 | 2021-06-10 | Gradient porous metal rubber brake disc |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215257522U (en) |
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2021
- 2021-06-10 CN CN202121297734.2U patent/CN215257522U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211221 |